%0 Journal Article %A V. I. Zhegalov %T A generalization of the Tricomi problem %J Trudy seminara po kraevym zadačam %D 1974 %P 43-52 %V 11 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a5/ %G ru %F KUKZ_1974_11_11_a5